Cadiz, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.9 °F (low) to 61 °F (high). Annual precipitation averages 42.6 Inches. Cadiz is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.4 °F | 36.0 °F | 3.29 in. |
| February | 22.0 °F | 39.3 °F | 2.46 in. |
| March | 29.7 °F | 49.0 °F | 3.32 in. |
| April | 39.8 °F | 62.0 °F | 3.76 in. |
| May | 50.4 °F | 71.4 °F | 4.12 in. |
| June | 59.3 °F | 79.0 °F | 4.73 in. |
| July | 62.9 °F | 82.5 °F | 4.15 in. |
| August | 61.3 °F | 81.6 °F | 3.82 in. |
| September | 54.6 °F | 75.9 °F | 3.7 in. |
| October | 43.3 °F | 63.7 °F | 3.08 in. |
| November | 33.5 °F | 51.5 °F | 2.97 in. |
| December | 25.9 °F | 40.6 °F | 3.16 in. |
| Annual | 41.9 °F | 61 °F | 42.56 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |